Lock.



F. KOSINSKY.

LOCK.

APPLlCATlON FILED AUG.22, 1914. 1, 1 34, 141 Patented Apr. 6, 1915.

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F. KOSINSKY LOCK.

APPLICATION FILED AUG.22. 1914.

1,1 34, 141 Patented Apr. 6, 1915.

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FRANK KOSINSKY, OF BROOKLYN, NEW YORK.

LOCK.

Specification of Letters Patent.

Patented Apr. 6, 1915.

Application filed August 22, 1914. Serial No. 857,989.

To all whom it may concern:

Be it known that I, FRANK KOSINSKY, a subject of the Czar of Russia, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Locks, of which the following is a specification.

This invention relates to certain new and useful improvements in looks, and has for its primary object to provide a lock of simple and efiective construction which will necessitate the employment of a particular form of key, and a knowledge of how to manipulate the key within the lock casing to release the locking bolt.

The invention resides in the novel combination and construction of parts as will be hereinafter more fully described and then claimed, and in describing the invention in detail, reference will be had to the accompanying drawings showing a practical embodiment of my invention wherein like numerals will be employed to designate like parts throughout the several views of the drawings, in which Figure 1 is a View partially in side elevation and partially in longitudinal section of a lock constructed in accordance with my invention, the front plate of the lock casing being removed and the lock bolt being shown in locked position. Fig. 2 is a similar view showing the key as having been operated to raise the locking pins into position to permit the withdrawal of the locking bolt. Fig. 3 is a view similar to Figs. 1 and 2, showing the locking bolt retracted into unlocked position and illustrating the manner in which certain of the locking pins hold the bolt against being proj ected until again properly operated. Fig. 1 is a transverse vertical sectional view of a lock in accordance with my invention. Fig. 5 is a perspective view of the lock casing with the front plate and with all of the movable parts of the lock removed. Fig. 6 is an inverted perspective view of the locking bolt. Fig. 7 is a perspective view of one of the locking pins. Fig. 8 is a perspective view of the key employed in connection with the lock, and Fig. 9 is a perspective view of the spring member which bears upon the locking pins.

To put my invention into practice I provide a lock casing consisting of a rear plate 10, top wall 11, bottom wall 12, a front end wall 14:, a rear end wall 15 and a front or cover plate 16, the latter being removable,

being secured to the casing by screws or any other manner.

lVithin the lock casing is provided a longitudinally extending pin supporting bar 17 suitably fixed within the casing, and may be cast integral therewith. This pin supporting bar is provided intermediate its ends, preferably closer to the forward end than to the rear end, with a series of pin receiving apertures which may be in any number desired, here shown however, as three in number and designated 18, 19 and 20 respectively. These apertures receive the shanks of looking pins designated 21, 22, and 23 respectively, each provided on its upper end with a head 24 which heads are engaged by a block 25 carried by a spring arm 26 attached to the underneath face of the top wall 11. of the casing.

The pin receiving and supporting bar 17 is provided on its under side with a cut away portion 27 of a depth and width corresponding to the depth and width of the locking bar or bolt 28 which locking bar or bolt is provided with apertures 18, 19, 20 adapted to be brought into registry with the apertures 18, 19, 20 in the bar 17 as will be more fully described. The locking bolt at its forward ends is adapted to be projected through an opening 29 provided therefor in the front end wall 1 1, the projecting end 28 being received in the usual keeper 80, and the bolt being limited in its outward movement by means of a shoulder 31 on its under side which engages with the front wall 14.

The key is inserted into the lock for unlocking the same through an opening 32 provided therefor in the rear end wall 15, this opening being of a height which will permit of vertical movement of the key as will be later explained, the key as shown in Fig. 8 is in the form of a bar 33 having as many pins 34L near its outer end as there are looking pins employed. In Fig. 1 the looking bolt 28 is shown in the locked position. To unlock the bolt the operator places the key in the position shown in Fig. 1 with the pins 34 directly underneath the pins 21, 22, 23. The key is then lifted vertically to the position shown in Fig. 2, causing pins 34 to raise the locking pins 21, 22, 23 out of the pin openings in the pin bar 17. When the locking pins have thus been raised, and while they are held in this raised position by the key, the latter is drawn rearwardly to move it to unlocked position as shown in Fig. 3 when inthi 'posiubnsidtheikyi' is dropped or lowered, locking pinl21wi1l be held supported by the looking bol'tfbutpins 22 and 23 will drop by reason of the aper-;

tures'therefor'in the bar 17 and locking'bolt,

28'being in registry, thus lookingvthe lock 1061b in the retr aeted position, necessitating the insertion of the key, aHd' itSpOSi-tioniHg underneath the pins 22, 23 so as to raise the projected or. moved into locked position. In this-releasing of: the pins' 22' and 93, the idle casing.-

cover p1ate 16-respeotiye1y; 7

changes may be made in the detailsa of'eon struotion wi-thout depzir'tir lg from the; spirit orfs'copeof'theinvention as=-c12' t-imed.' V V The lock-bolt 28 "is supported 'Efio'rsi-iding movement in th'e cut aw-ay porti-on 27-of the bar 17 by supportin ledgesiesmnd 36' car ried by the rear plate 10'- arid the lfrofit 'or'' VVhile-I :h'ave described a preferredarid practical-embodiment of the invention as has beenpractised by me' it will be-eyident that ;,WhatI claim isi s In a lodge easing,.a longitudinally ei- 'tendifig supp'orting "bar therein provided f ith a series-0f aperturesfheaded locking: pins mounted in the apertures, a bodily and tiltabl y yielding presser block coacting x-yvithk the pins, a lockingbolt slida'bly merited Withinthebar 'ifidl-lhaving apertures corresponding in number to the apertures inthei:

bar and arranged"whenbifoughtinto 'regis40 I 2. lfrriai flo'bkfa'i casing, a longitudinally extending supporting b therein, cutaway, on its lower side end having plurality .ijof openings therethrough; a loeking -hoil-t slidably mounted in chem-swa por i s'jmrdhaving Eo enings corresponding in {number 1 to 'the'ppefn-ings "in-ithe bar; headed locking direotion sif In testimony whereof efiit niy signature coitu -01 th pafue' myebmbtama oi- 11mm enm :aaaimi gwi q cuhmlssidnen 6151mm. V f

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